Improvement in insect-powder injectors



A. MEYER.

Insect-Powder lnjctor.

Patented JuneL1875.

THE GRAPHIC COJHOTO -LITH.39 & 41 PARK PLACE, N.Y.

NITED STATES ARTHUR MEYER, OF NEW YORK, N. Y.

IMPROVEMENT IN INSECT-POWDER INJECTORS.

Specification forming part of Letters Patent No. 163,877, dated June1,1875; application filed March 26, 1875.

To all whom it may concern:

Be it known that I, ARTHUR MEYER, of New York city, county and State ofNew York, have invented certain new Improvements in Insect-PowderInjectors, of which the following is a specification:

The object of my invention is to provide for a cheap and reliableinsect-powder injector, which may be placed on a table or shelf withoutthereby spilling its contents.

My invention consists in constructing a hollow cylindrical metallicvessel with open ends. The upper smaller end is provided with ascrew-thread inorder to receive a cap provided with correspondingscrew-thread. This cap terminates in a nozzle. The lower and larger endis provided with an inside flange, against which, on the inner side,rest two metallic disks of somewhat less diameter than the lower part ofthe vessel. Between these disks is placed a diaphragm made of a flexiblematerial, and held thereto by aid of a rivet placed in the center of thetwo disks. The other end of this diaphragm is fastened to the inner sideabout in the center of the cylindrical vessel. The disks and thediaphragm are held against the flange by aid of a spiral spring pressingagainst the inner disk and the inner side of the cylinder, near to thetop.

The operation of my improved insectpowder injector is as follows: Thepowder is introduced into the cylindrical vessel through the smalleropening, over which is placed the screw-cap with its nozzle. The nozzlebeing directed near to the place where the insectpowder is required tobe injected, the thumb of the operators hand, holding the injector, isplaced in the center of the outside disk, and by pressing inward thepowder is ejected through the nozzle.

By relieving the pressure on the disk the spiral spring replaces thesame in its former Figure I is a sectional elevation of my improvedinsect-powder injector. Fig. II is a plan sectional view on line m m,Fig. I.

A is the cylindrical hollow vessel, with the smaller opening I) and thelarger opening 0, with inside flange d. F is the cap, with screwthread gfitting over corresponding screwthreads around the opening I). h is thenozzle attached to the cap F. I and J are the disks resting against theflange cl. K is the diaphragm, held between the disks I and J by therivet Z. The other end of the diaphragm is fastened to the inner side ofthe cylinder at m. N is the spiral spring, with one end resting on thedisk J, and with the other end resting against the side of the cylinderat 0.

I am well aware that a patent was granted to Rose and Goldsmith,November 29,1870, being No. 109,762, for an insect-power injector,illustrating the inventors mode of obtaining result-s, somewhat like towhat I do, while there is a material difference in the construction. 1disclaim, therefore, any intention of infringing upon this patent.

Having thus described my invention, I desire to claim-- Thedouble-bottom disks I J of the vessel A, in combination with theflexible diaphragm K and spring N, as specified.

ARTHUR MEYER.

Witnesses:

ANTON O. GRoNnAL, FRANKLIN BARRITT.

